TNC Global Invasive Species Team page


	The Global Invasive Species Team

Introduction

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As a result, this spotted knapweed infested western Montana landscape is more susceptible to erosion than it had been under native bunchgrasses. The knapweed root systems do not hold soils or slow runoff as well as native grasses do. (The knapweed is visible as the purplish wash in the valley floor.)

Slide 29

Center for Invasive Species and Ecosystem Health